media

type Audio struct {
	// contains filtered or unexported fields
}

type Codec struct {
	Name string // as in rtpmap: PCMU, PCMA
	PT   uint8  // static payload type
	// contains filtered or unexported fields
}

type Config struct {
	IP        string  // local address for the socket and the SDP
	Codecs    []Codec // preference order; default PCMU, PCMA
	Audio     *Audio  // what we send; default DefaultAudio()
	Scheduler *Scheduler
	// HeardLevel is the level in dBFS above which a received frame counts
	// as audio; default -45.
	HeardLevel float64
	// NoLatch disables symmetric RTP: by default we send to where the
	// peer's packets come from once the first one arrives (NAT, SBCs).
	NoLatch bool
	// Record keeps the heard and sent audio for Recording().
	Record bool
}

type Direction string

type NetStats struct {
	PacketsIn, PacketsOut uint64
	BytesIn, BytesOut     uint64
}

type Quality struct {
	// Score is the similarity of the heard audio to the reference, 0..1:
	// the correlation of their telephone-band spectrograms after alignment.
	// It ignores the level; drop-outs, noise, distortion and wrong audio
	// lower it.
	Score float64
	// Offset is where the reference starts in the recording.
	Offset time.Duration
	// Compared is the length of the reference that was compared: shorter
	// than the reference when the recording ends early.
	Compared time.Duration
	// Gaps is the reference speech during which nothing was heard.
	Gaps time.Duration
	// ClippedStart is the part of the first word that was lost: gaps from
	// the start of the reference speech until audio is first heard.
	ClippedStart time.Duration
	// Gain is the level of the heard audio relative to the reference, dB.
	Gain float64
}

type Recording struct {
	Heard []int16 // received audio, what the subscriber hears
	Sent  []int16 // our audio, what the subscriber says
}

type Remote struct {
	Addr   *net.UDPAddr // nil or unspecified IP means hold
	Codecs []Codec      // supported codecs in the peer's order
	DTMFPT int          // telephone-event payload type, -1 if not offered
	Dir    Direction
}

type Scheduler struct {
	// contains filtered or unexported fields
}

type Stats struct {
	Codec           string
	PacketsSent     uint64
	PacketsReceived uint64
	PacketsExpected uint64
	PacketsLost     uint64
	Jitter          time.Duration
	Heard           time.Duration // time of received audio above HeardLevel
	DTMF            string        // RFC 4733 digits received
}

type Stream struct {
	// contains filtered or unexported fields
}